condition mean min max 4 h after light 11.0456915 10.338574 11.752809 8 h after light 11.133168 10.437534 11.828802 12 h after light 9.8747085 9.298958 10.450459 4 h after dark 11.8106165 11.485288 12.135945 8 h after dark 10.489315000000001 10.450459 10.528171 12 h after dark 9.532076 9.532076 9.532076